Tractor.



A. L LEHMAN AND G. 1. LEXA.

TRACTOR. APPLICATION FILED APR.23. ma.

1,322,028. Patented Nov. 18, 1919.

2 SHEETS-SHEET l.

A.1. LEHMAN AND GjJ. LEXA.

TRAcoHf APPLICATION FILED APR.23 1919.

Patented Nmals, 1919.

lievllillllll 2 SHEETS-SHEET 2- iii i :.finnir onnionz.

TRACTOR.

Application filed April 23, 1919.

di. ense the engine o r motor and its aeree so as to eeenre a betterbalanced, more Seli-contained or etnnpaet and wieldy niachine; toprevent fr vroseo'pie action ol the engine wheel ironi resisting; orinterfering 'with the tipping' ot' the tractor wheel siden'ise insteering- `the machine; to adapt. a tractor to the operationolagricultural and other machines or in'iplenients, such an enltivatms,plows, mowers, ete., which are ordinarily drawn by one or more horses ordraft animals, without material change in the construe-tion ormanagement of auch ina.- ehines or implements; anc. generally toSiniplify and improve the eonetruetion and operation of tractors of thisclaas.

it consists in the eonstruetioin'arrangenient and combination of partsas hereinv after particularly described and pointed ont in the claims.

In the accompanying drawinglike charac ters designate the saine parts inthe several figure-s.

Figure l is a side elevation of a tractor embodying the invention, andconnected with ay eultivator; :2 is a `plan view of the machine; Fig. 3is an enlarged vertical Sect-ion on the line 3-3, Fig'. il. oi thetraeltion wheel. showing the niotor in elevation; and Fig. l is avertical arose` section oli the traction wheel on the line L'l ll, Fig,also Showing the motor in elevation.

As shown in Figs. l and` 2, the tractor ha@l a portable trainecomprising two Substantially parallel and horizontal channel bar membersIl, which are rigidly connected with Specification of Letters fitent.

Patented Nov. 18, 'l 91' Serial No. 292,066. I

each other b v one or morel @rose bars 2. and two Sul.-;tantiall vSquare open iranie ineinbers 3. bolted diagonally to the inner sidesoi.2 the bar member1 l. opponite each other. The inenlbers 3 areconnected adjacent.l their three upper eorners by iarallel cross rods oreha'tta -l. and' as shown in Figs. 2? and 4l, on these rodel or shaftsand on studs 5 pio ieeting inwardly ilroni the. lower cornere of theinenibers 3 in alineinent with each other, are rotatably niounttal atintervals in parallel cil-olea, flanged .rollers (3.

Single Spolieless and webless supporting'. Steering; and traetion wheel9, is rotatably niounted and guided on the rollers 6 between the. sidemember` l and 3 oli the traine. The traction wheel riin maybe con*veniently made as shown, ol steel plate, rolled or otherwise lQhapedinto eoneavo-eon vex forni. as shown in Fig. 4., giving the wheel anarehed or rrowned tread` on Whie the tractor is adapted to be tipped orrocked sidewine b v the. operator.4 tor Steering or ,guiding it.internal bearing rings ll, liastened to the inner ront-ave aide ol. thesteel rim near its edges. engage. with the rollers (l on which they areretainwl and guided by the. roller flanges. rl`he bearing" rings 1l areiiornied or provided with internal gears or Circular racks 12.

The convex or crowned tread of the traetion wheel provided with aCentral oulf wardlv projecting eil-cuniierential rib or llange. 15,which may consist ol2 ay 'lbar riveted or otherwise. fastened to theSteel rini ot the wheel. On opposite sides of the, een tral rib orflange 1.5, the tread of the wheel is also provided with obliquel)rdisposed wings or llifrhta 1G, which may be made of' angle bars rivetedor otherwise. fastened 'to the steely rim. The flights or wings 16 increase the t-raetion ol? the wheel on Soft or loose ground, and the ribor flange l5 prevents the wheel 'from Slipping or shielding sidewise, y

lhe tractor is driven b v a motor mfnlnted in the, frame within thetraction wheel il. A single upright cylinder, oil or internal combustionengine, is shown for this purpose.

ne closed crank ease lo with which the en gino is nrw/idool., bollo/rlor falonccl 'lo lilio ill-aine nienilicrs 3 below lli@ .inoinlaors i7anal lili@ cylinclor l), wliicli is Walor-jaclzclierlil extern-lsupwardly lnlicrolfroin liotivccn incl above lilio liar incinbcrs L"rllio crank or driving,r shaft 2l of glio engine, which liars bearingsin llic crank caso 18, i5 disposed lengthwise ol' lilic tractor below'unil. parallel willi 'tlic fraino incinlocrs .l and lranSif'L-irsoly tothc axis ol' l/lrc lfaolion wlioc' il, anal is; provided al ono ondwilli worin @l and at the other cnil willi a ily 'n'lioel 23 and a bevelgear The .vorin E22 inca-lios with a worin goor 26, which i5; looselyinounlocl on a transvcrno Snail. 27, supported in boar-- ings in lili@iranic nicinliora 3 panllcl willi, the axis ci the t action wheel. TheShaft is provided with lined gears or 'pinionii 28.! meshing" willilili@ racks il. clulcli E29 splinod on lic shaft 27' is shiflalilo intoami. oui; of oligagg'oincnlz willi the corresponiflinn clulcli Incinbcrl'orniod on or atiacliorl lo llio lnib of the Worin roar QG, foropcralivoly connecting4 lzho motor or onginc willi lili@ tractionwliool.

A tank 3l, ior water or cooling liquidi9 supported on .hangers 32,fasloncrl lo l'lio front curls ol flic l'rauio oars l, and connec-lodwilli Elio jaolicit oil tho engine cylinfL dcr 19 'oy circulating' pipes323 ainil 3l.

pump 36, conoscitori 'Willi tlic pipo anil driven by the bevel gaar l,inoslnng willi a snnllar gear 3l' on a crous Shaft om" nil* ing fromlloc "ramo nionilicrs l llirongrli ille, traction n'liocl.) cannes lli@walcr or rooling liquid lo circulate through lli@ cylinder jaclct, lanland ronnocling pipas .rliilc lilio engine is in opcralion.

A gasoleno or fuol oil reservoir lll, supported by ilic 'lrarno membersl over tlio roar part oi lilic iraciion n'lirol il, is oonncolfcd by upipo Ll-l Wil/li liao carlnlrrtor lli ol' tlic origin@v The rollcra i5and licaring rings,n ll on which llic laclion Win-'sol is; roiol'ablj:mounted ainl guiilcrl. lln transmission incrir-A aninin conncolinig`lilo cngine li ilio trac-- tion Wliccl, and the pump, incliulingl ilaractuating coniicctionfi with lli@ cugino., arc all inclosccl andprolorlzcil from flirt by a vfiusingtll, which ,may loo n'iznl'o ashown, of colnparalvivcly light alieni; metal, an opcn ing beingr leftthrough the housing' in which the engine cylinder il) ciiposscifl al.bolli sides of the traction wlicol to il annospliere, the 'frooCirculaiion olt air llirourli this opening; cor'ipc 'ating with lille,valor or cooling liquid ciroulalcrl through thc cylinder jacket, to keepthe cylinder cool.

To illustrate on@ ol lli@ various :Srs to which the tractor may bcnppliml, a cultiator 4G oi a Standard or ronnnon malle, shown in Figc. l:unl Qr i5 connor-lcd willi 'Valor arc 1""'f1lly feminin-cil; an li);ll--liollis lll,

lo lli@ roar onilS of lilo ironic bari: lr) and ooi-Vo a5 lianrllcs fortipping" or roi'sling lloc rraclor siilcwiao on thc convoi; or armi/nod4rcarl of liao traction Wliccl 5), and lzlicrclry slowing or (lire/@Mugits conrso as Woll as guiding ilio cullgifatora which is also Connoctcxla l1 llic ilironl'l and. ol: ils conter linnn or loar with lilic crossliar 1% of llio 'tractor 'frainc licliinLl tlio traclion wlicol.

An angular lorlicrl clulcli shifting lovor 50, fillcrluncd on llic crankcaso i8 oli l/lic engine, is conncotcil by a rod 5l willi a lci'crliulcruincrl oneJ ono of tho l'faino liars l. and connoctil by a rollwith a liainl lover 5l, inountcd lon a cross rofl o5 connocting lilohandler-i l?.

.iL-rn arnr 5T on lllc filoni of llic tllroillc vali'o wliirli controls;anil rcgulalcs lilic nur ply of Ylucl ironi tlm carlJnrrlcr l llo 'rliccugino, ifs ronnor'rfl by a rod {Br} with a rorlcr arm Sil on ono oliilw l' amc liars l, and in lurn ronncctwl 'op' a rod (Si) with a liainllcrcr (3l. iuonnlcrl on tiro (brons rofl nom; lo lli@ low-r :il andnilliin convonieni roach olil llio onora lor or ilrivcr.

ln tlic oporalion olf olio lracoig it ia inmoral, unil lli@ rull'ivalor-ll or ollnr inarontrollcfl and rogulatml lo' moana oilz liao 1 liainllovor lfl, 'u'.liirli opcralgcfls lilo llirolllc valve olil llio cugino,and Aclic {1f-actor Slioppoil :intl Hlartod when ilio cngrjino is inopcration by moana ol.' lio lianrl lover 5l, n'liicli sliil'ls liloclulrli if@ iulo and our of rnoagg'cincnl willi flic worin roar 2li.

Tilo convox or crownorl nliapc olf llio lzrcaxl ol flic lrarlion wiiociil noi' onlyY 'ifnciliizalol lipping or rocking' it Sirlowisc foralooring lllc tracl'on lout also :illoi'rls a lirnnlr liolrl orengagement olftlic n'liocl willi lli@ :gi-round ovvi' wllioli ittravelo, particularly soll or loose groulifl.

rllio walor rank fil willi iis vonlionlf-s mounted ou lilo i'ronl. ond.olj llio lfranic, countcrlwlanccs or partially 4ooiinlin'lial- :incosllic ruliiivalor or otlnr ilnplcmont alz laclictl to llic roar ond olElie lirismo, making it osier lor llic opcralor loin-anillo llicnmcliino.

The motor or cugino willi il .sion nicclianiani connecting it will'`tlic traction wheel and thc pump, lining` mounted n'illiin tllc tractionwlncl mainly liclow its axin, locator; tlic conl'cr olE gravity fl thclravi'or liclow tlw axis olE lic lrari'ion wlicol,

:woiils lop-li anillosA and tln` liability of lllio the tractor. 'llliolianillo; Ll' oli lino colli-- l, actor lio (up over wlicn it is rockedto either side in steering it. besides making the machine lesscumbersomey and unwieldy The disposition ot' the crank or driving shatt2i ot the engine on which the ilywheel is mounted lengthwise ot' thetractor below and parallel with the side bars l and transversely to theaxis ot' the trac-tion wheel. prevents the Q'tvroncopie action ot' thefly-wheel from resisting or interfering' with rocking` the tractoreidewise7 and thun greatly'facilitates steering;r the traetol andguiding' the cultivator or other machine or ii'nplement attachedthereto.

The ganolene or fuel oil reservoir 40, which is preferably made ofsegment-al Shape, as showin in Fig. l, being mounted close to and overthe traction wheel S), serves as a guard or shield theretor. Between thetank 3l 'and the reservoir 40, the. traction wheelf'niay be covered by nsheet. metal plate or shield 63, as shown in Fig. l.

The eultirator 46, shown in Figs, l and 2, can be easily disconnectedfrom the traetor by removing the U-bolts elS and the bolt fasteningn thecenter beam to the cross mem` ber and the tractor may be attathcd to orconnected in a like or Similar manner and used with any other machine'or impletnentl to which it mai7 be adapted. f v,

Various changes in the details ot construction and arrangement ot' partemay be made without departing;` from the principle and Scope ot' theinvention as defined in the following claims.

lVe claim:

l. ln a tractor the combination ot a portable trame provided withSteering handles, a single supporting and traction wheel mounted in thetrame and having a crowned tread on which the tractor in adapted to betipped sidewise by the Steering handles. a reo'tor mounted on the trame,and transmission mechanism tor connecting* the motor with the tractionwheel.

2. ln a tractor' the combination ot' a trame provided with steering;handles. a Singletonporting and traction wheel mounted in the trame andhaving a crowned tread on which it, is adapted to be rocked sidewise bythe lsteering' handles7 a motor carried by the trame, and transnnisnionmechanism tor connecting' the motor and traction wheel conipriing' adrive Shaft. provided with a ily wheel and having' its axis disi'ioezedlengthwise ot the tractor and transversely to the artis oLt the tractionwheel.

ill ln a tractor the, einnbiuation ot a trame prof'ided with Steeringhandles. a `injgjle spolelean and webless traction and s u'ppfn'tingrwheel rotatably mounted in Said trarne and having` a crowned treadonwhich it is adapted to be rocked nidewise by the steeringg'ibandles, amotor carried by the traine within the traction wheel, and transmissionmechz'iniam tor connectingthe motor with the traction wheel.

l. ln a tractor the combination otI a trame provided with steeringhandles, a single spokelenn and weblees traction and hupporting' wheelrotatably mounted in said trame land havingl a con\'e.\ tread on whichit, is adapted to be roi-hed sidewise by the Steering' handlee, a Imotorcarried by the trame within the traction wheel. and transmissionmer-haniSm l'or connecting the motor and traction wheel, the motor andtransmission mechanism being disposed within the traction wheel tolocate the center ol gravity of the tractor below the axis ol the wheel.

In a tractor the combination of a trame, provided with Steering handles,a single traction and supi'iorting wheel mounted in the trame andhaving` a coniex tread, on which it is adapted to be rocked Sidewise bythe steering handles and which is provided with an outwardl)- projectingcircumferential llange, a motor carried by the Yt'anie and transmissionmechanism tor connecting the motor with the traction wheel.

G. lna tractor the combination ot a 'frame with steering handles and atintervals in a Y, circle withrollern. a spokelexs traction wheelrotatably mounted ou said rollorS and hav- :ing' a crowned tread onwhich the tractor is [adapted to be rocked side'wise by the handles forSteering it, a motor supported by the trame within thel tractionwheel,'and trailerv misnion mechanism t'or operatively eonnecting themotor with the traction wheel coinprisine' a 'tlvywheel and'drivingjhat't dis-` posed lengthwise "ol the, tractor' and transversely to theaxis ot 'the traction wheel.

'7. ln a tractoi' the'ronibination ot a vtraino comprising spaced sidemembers and provided at intervals in parallel circles with rollers, aSpolteless and webleafs traction wheel rotatably monnted and guided onsaid rollers and provided*twith internal circular *I ,f- Y r: elta, aahatr. mounted mi the traine parallel with the axis o't' the tractionwheel and provided with pinions meshing' with the racine,

an internal combustion engine carried by the traine. inside ot thetraction wheel with the engine cylinder extending upwardly into theupper part ot the, wheel. tranninission meehaniein tor connecting theengine with the pinion Shaft, and a housing' attached to the, traine,inelosingithe trainanisa'ion inecluiA nisni and rackl :uni ninionsy withthe Iinner Side, ot the traction wheel rim` and formed

